Hub bearing sealing structure

Abstract

The utility model provides a hub bearing sealing structure which comprises an outer ring, and a sealing assembly is arranged at the top of the outer ring. The sealing assembly comprises an upper inner ring arranged on the inner side of the outer ring, a sealing ring is arranged on the top of the upper inner ring, a sealing protruding part is arranged on the inner side of the sealing ring, and an auxiliary belt is arranged on the portion, located above the sealing protruding part, of the inner side of the sealing ring. According to the hub bearing sealing structure, the connecting ring is arranged at the top of the upper inner ring and fixed to the top of the upper inner ring through the fixing bolts, then the sealing ring can be pressed to the inner sides of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downwards and rotated, the cover plate is fixed to the outer side of the outer ring, and the sealing ring is fixed to the outer side of the outer ring. The sealing device is simple and practical in structure, the sealing effect is guaranteed, and meanwhile the effects of positioning and rapid installation of the sealing device can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wheel hub bearing, especially to a wheel hub bearing sealing structure. BACKGROUND

[0002] Bearing is an important basic component of mechanical transmission, which is extremely important in actual engineering practice and cutting-edge scientific research. With the popularization of automobiles, the development of the bearing industry related to automobiles has also been greatly promoted.

[0003] Wheel hub bearing is a part applied to the axle of a car to bear weight and provide precise guidance for the rotation of the wheel hub, which bears both axial load and radial load, and is an important part of the car's weight and rotation.

[0004] Wheel hub bearing is a sealed bearing with a sealing ring. The working environment of the automobile wheel hub unit is harsh, constantly accompanied by huge impact load, and operates under vibration conditions, with intense heat exchange inside and outside the bearing. In the related art, some existing wheel hub bearings often lack sealing structures, which can cause external dust to enter the bearing and affect the use of the bearing, and internal lubricating oil to escape, causing waste. Application No. CN202323019699.X discloses a wheel hub bearing sealing structure that can ensure sealing. However, the device is complex in structure and lacks a positioning structure for the sealing element, making installation time-consuming and labor-intensive.

[0005] Therefore, it is necessary to provide a wheel hub bearing sealing structure to solve the above technical problems. SUMMARY

[0006] The utility model provides a wheel hub bearing sealing structure, solved in the related art, the sealing device of part wheel hub bearing of existing in use, structure is more complex, the problem of troublesome installation.

[0007] To solve the above technical problems, the utility model provides a wheel hub bearing sealing structure, which comprises: an outer ring, the top of the outer ring is provided with a sealing assembly;

[0008] The sealing assembly comprises an upper inner ring arranged on the inner side of the outer ring, the top of the upper inner ring is provided with a sealing ring, the inner side of the sealing ring is provided with a sealing protruding portion, and the inner side of the sealing ring above the sealing protruding portion is provided with an auxiliary belt.

[0009] Preferably, the top of the sealing ring is provided with a dust lip, and the inner side of the dust lip is provided with a labyrinth groove.

[0010] Preferably, the inner side of the sealing ring outside the sealing protruding portion is provided with a disc spring, and the inside of the sealing ring is provided with a reinforcing rib.

[0011] Preferably, the top of the outer ring and outside of the upper inner ring is provided with a connecting ring, and the inner side of the connecting ring is vertically provided with a fixing bolt.

[0012] Preferably, the top of the sealing ring is rotatably provided with a cover plate, and the bottom of the inner wall of the cover plate is threadedly connected with the outer side of the outer ring.

[0013] Preferably, the inner side of the outer ring and the bottom of the upper inner ring is provided with a lower inner ring.

[0014] Compared with the related art, the hub bearing sealing structure has the following beneficial effects:

[0015] The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed.

[0017] Figure 2 The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed. Figure 1 The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed.

[0018] Figure 3 The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed. Figure 2 The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed. The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed.

[0019] The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed. Figure 4 The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed. Figure 2 The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed.

[0020] The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed. DETAILED DESCRIPTION

[0021] The hub bearing sealing structure has the following beneficial effects: the connecting ring is arranged at the top of the upper inner ring, the connecting ring is fixed at the top of the upper inner ring through the fixing bolt, the sealing ring can be pressed to the inner side of the upper inner ring and the connecting ring, the sealing ring can be positioned, the cover plate is pressed downward and rotated, the cover plate is fixed at the outer side of the outer ring, the structure is simple and practical, the sealing effect is ensured, and the sealing device can be positioned and quickly installed.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A hub bearing sealing structure, comprising: an outer ring 1, the top of the outer ring 1 is provided with a sealing assembly 2;

[0023] The sealing assembly 2 comprises an upper inner ring 21 arranged on the inner side of the outer ring 1, the top of the upper inner ring 21 is provided with a sealing ring 22, the inner side of the sealing ring 22 is provided with a sealing protrusion 23, and the inner side of the sealing ring 22 and above the sealing protrusion 23 is provided with an auxiliary belt 24.

[0024] Through the arrangement of the sealing protrusion 23, the lubricating oil in the bearing can be prevented from escaping, and through the arrangement of the auxiliary belt 24, the sealing of the lubricating oil can be temporarily replaced when the sealing protrusion 23 fails.

[0025] The top of the sealing ring 22 is provided with a dust lip 25, and the inner side of the dust lip 25 is provided with a labyrinth groove 26.

[0026] The dust lip 25 protects the external dust and impurities, and the labyrinth groove 26 can block the possible entering dust and impurities outside the bearing.

[0027] The inner side of the sealing ring 22 and outside the sealing protrusion 23 is provided with a disc spring 27, and the inside of the sealing ring 22 is provided with a reinforcing rib 28.

[0028] Through the arrangement of the disc spring 27, the disc spring 27 is tightened to make the sealing ring 22 shrink, so that the sealing protrusion 23 is tightly abutted on the surface of the bearing rotating part.

[0029] The top of the outer ring 1 and outside the upper inner ring 21 is provided with a connecting ring 29, and the inner side of the connecting ring 29 is vertically provided with a fixing bolt 3.

[0030] By arranging the connecting ring 29 on the top of the upper inner ring 21, the connecting ring 29 is fixed on the top of the upper inner ring 21 through the fixing bolt 3, then the sealing ring 22 can be pressed to the inner side of the upper inner ring 21 and the connecting ring 29, the sealing ring 22 can be positioned, and the installation of the sealing device is facilitated.

[0031] The top of the sealing ring 22 is rotatably provided with a cover plate 4, and the bottom of the inner wall of the cover plate 4 is threadedly connected with the outer side of the outer ring 1.

[0032] After the sealing ring 22 is installed, the cover plate 4 is pressed downward and rotated to be fixed on the outer side of the outer ring 1, so that the installation of the sealing device is completed.

[0033] The inner side of the outer ring 1 and the bottom of the upper inner ring 21 is provided with a lower inner ring 5.

[0034] The working principle of the hub bearing sealing structure is as follows:

[0035] First step: in the use installation, by the connecting ring 29 is placed on the top of the upper inner ring 21, by the fixed bolt 3 is fixed on the top of the upper inner ring 21, then the sealing ring 22 can be pressed to the inner side of the upper inner ring 21 and the connecting ring 29, the sealing ring 22 can be positioned, by pressing the cover plate 4 downwards and rotating, it is fixed on the outer side of the outer ring 1, so that the installation of the sealing device can be completed conveniently and quickly;

[0036] Second step: when working after the shaft is connected with the hub bearing, the disc spring 27 is tightened so that the sealing ring 22 is tightened, and then the sealing protruding part 23 is firmly abutted on the surface of the bearing rotating part, so that the lubricating oil in the bearing can be prevented from escaping, the auxiliary belt 24 can temporarily replace the sealing protruding part 23 to seal the lubricating oil when the sealing protruding part 23 fails, the dust lip 25 can prevent external dust and impurities, and the labyrinth groove 26 can block the possible entering dust and impurities outside the bearing.

[0037] Compared with the related art, the hub bearing sealing structure provided by the utility model has the following beneficial effects:

[0038] By placing the connecting ring 29 on the top of the upper inner ring 21, fixing it on the top of the upper inner ring 21 by the fixed bolt 3, then the sealing ring 22 can be pressed to the inner side of the upper inner ring 21 and the connecting ring 29, the sealing ring 22 can be positioned, by pressing the cover plate 4 downwards and rotating, it is fixed on the outer side of the outer ring 1, the structure is simple and practical, the sealing effect is guaranteed, and the positioning and quick installation effects of the sealing device can be achieved.

[0039] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the utility model. Obviously, the utility model is not limited to the above embodiments, and there can be many variations. Any simple modification, equivalent change and modification according to the technical essence of the utility model to the above embodiments should be considered as belonging to the protection scope of the utility model.

Claims

1. A hub bearing seal arrangement, characterised in that, Include: The outer ring (1), the top of the outer ring (1) is provided with a sealing assembly (2); The sealing assembly (2) includes an upper inner ring (21) arranged inside the outer ring (1), the top of the upper inner ring (21) is provided with a sealing ring (22), the inner side of the sealing ring (22) is provided with a sealing protrusion (23), the inner side of the sealing ring (22) and above the sealing protrusion (23) is provided with an auxiliary belt (24).

2. A hub bearing seal structure according to claim 1, wherein The top of the sealing ring (22) is provided with a dust lip (25), the inner side of the dust lip (25) is provided with a labyrinth groove (26).

3. A hub bearing seal structure according to claim 1, wherein The inner side of the sealing ring (22) and outside the sealing protrusion (23) is provided with a coil spring (27), the inside of the sealing ring (22) is provided with a reinforcing rib (28).

4. A hub bearing seal structure according to claim 1, wherein The top of the outer ring (1) and outside the upper inner ring (21) is provided with a connecting ring (29), the inner side of the connecting ring (29) is vertically provided with a fixing bolt (3).

5. A hub bearing seal structure according to claim 1, wherein The top of the sealing ring (22) is rotatably provided with a cover plate (4), the bottom of the inner wall of the cover plate (4) is threadedly connected with the outer side of the outer ring (1).

6. A hub bearing seal structure according to claim 1, wherein The inner side of the outer ring (1) and the bottom of the upper inner ring (21) is provided with a lower inner ring (5).

Images